What is llms.txt and how to create yours (free generator)
llms.txt is a text file placed at the root of a website
(yourdomain.com/llms.txt) to tell language models, in a few lines, what the site is
and which pages are worth reading. It is what robots.txt is for crawlers, but the
other way round: it forbids nothing, it summarises. Here you will find what it is, what it does
and does not do, how to write it, where to upload it depending on your platform, and a generator
to create yours in two minutes.
English translation of the Spanish guide. Published on 2 October 2026 by Salvador Nadal.
llms.txt. The rest have none.
What it is for, and what it is not for
The proposal was published by Jeremy Howard (Answer.AI) in September 2024, at llmstxt.org. The idea is simple: a modern website is full of menus, scripts and adverts, and a model struggles to find what matters. A short Markdown file gives it the summary and the right links.
The honest thing is to also say what it does not do. Today no major assistant has
confirmed that it uses llms.txt to decide who to recommend, and Google has
said publicly that its search engine does not use it. Agents, coding tools and some crawlers do
read it. In other words: it is not a magic lever, it is a cheap help. It takes ten minutes, has
no downside and, if assistants adopt it, you will already have it. What really makes an AI
recommend you is in the seven steps of this guide,
and llms.txt is the sixth.
How to write it
It is Markdown, in a fixed order:
- A
#heading with the name of the business or site. It is the only required part. - A
>quote with the summary: what you are, what you do, for whom and where, in one or two sentences. - If needed, one or two paragraphs with what a model should know (opening hours, area, what you do not do).
##sections with lists of links:- [Title](url): note.- An
## Optionalsection with secondary material the model can skip.
An example for a garage:
# Example Garage
> Car repair shop in Villena (Alicante): general mechanics, tyres and pre-MOT checks
> for private cars and vans. Open Monday to Friday, 8:00 to 18:00.
Address: Calle Mayor 1, 03400 Villena. Phone: 965 000 000.
## Services
- [General mechanics](https://examplegarage.es/mechanics/): servicing and repairs
- [Tyres](https://examplegarage.es/tyres/): sale and fitting, all brands
## Optional
- [Reviews](https://examplegarage.es/reviews/)Our own file, if you want to see a longer real one: nombradia.com/llms.txt.
Free llms.txt generator
Fill in what you have and copy or download the result. Everything happens in your browser: we do not store or send anything.
Where to upload it, depending on your website
- Your own website or hosting with file access: upload it by FTP or from your
hosting's file manager to the root folder (where
index.htmlorrobots.txtis). It must open atyourdomain.com/llms.txt. - WordPress: the most widely used SEO plugins (Yoast SEO and Rank Math) can now generate it from their settings. If you use neither, upload it to the root by FTP as above.
- Shopify, Wix and other closed platforms: they do not let you upload files to
the root. It is done with an app from their app store or, on some, with a redirect from
/llms.txtto a file uploaded to the platform. If that is not possible, do not worry: it is the least important of the seven steps.
Then check that it opens in the browser and that your robots.txt does not block
AI crawlers.
Frequently asked questions
Is llms.txt mandatory?
No. It is a voluntary proposal, not an official standard, and a website without one can perfectly well appear in AI answers. It is a cheap help, not a requirement.
Does llms.txt improve Google rankings?
No. Google has said its search engine does not use it. What improves Google rankings is what always has: useful content, a website that can be read, and other sites talking about you.
What is the difference between llms.txt and robots.txt?
robots.txt tells crawlers what they may and may not read. llms.txt forbids nothing: it summarises the site and points to the important pages so a model can find them quickly. They complement each other, and the first thing is that robots.txt does not block AI crawlers.
What is llms-full.txt?
A long version of the same file, with more content inside (sometimes the full text of the pages) instead of just links. It is optional and makes sense on sites with a lot of documentation; for a local business, llms.txt is enough.